defense secretary panetta has said there are no plans to put u.s. troops into mali, but that could change if terrorists there start killing americans. >> pelley: david, thank you. in our new poll out tonight, an overwhelming number of americans approve of the president's call for universal background checks for gun buyers. the cbs news/"new york times" poll shows background checks on all potential gun buyers are favored by 92%. a ban on high-capacity magazines is favored by 63%. a national ban on semiautomatic weapons is favored by a slim majority of 53%. that's interesting, because our research department found that 65% of all of the guns sold in america are semiautomatics. we asked, also, whether the gun laws should be more strict. 54% said yes. 9% said less strict. and 34% think the laws should remain the same. when we asked the public's opinion of the national rifle association, the response broke down in nearly thirds. 38% have a favorable opinion. the movie theater where one of the worst gun massacres took place, reopens tonight, with a privat